Washing-machine gear



B. A, sT-ocKlNG WASHING MACHINE GEAR Filed Feb. 2l, 1927 Patented Mar. 20, l19,28.

PATENT OFFICE.

' BERT assioma, or nEs MOINES, IOWA..

WASHING-MACHINE Gunn.

Appncation md February 21, 1927. seria1 Na. 169,875'.

This invention relates to' improvements 'in washin machines and particularly to that type isclosed in-my copending appli- -cation for United States Letters Patent on 5 washing machine, filed July 20, 1925, Serial Number 44,805. This improvement pertains tothe manner in whichthe dolly is mounted on the dolly shaft and the manner in which it is operatively connected l. with the gear mechanism vfor imparting motion to said dolly.

My invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed'out in my claims, and illustrated inthe accompanying drawings, in which:

Figure 1 is a vertical sectional view of the bottom of the washing machine tub taken through the centerof the dolly.

Figure 2 is a detail sectional' view taken on the liner2-,-2 of Figure 1.

' Figure 3Lis a detail sectional View takenv on the line 3-3 of Fi re 1.

The numeral 10 indlcates the-bottom end' of the washing machine tub, preferably provided with an inclined bottom 11. The central portion of the bottom 11 is provided with a recess 12 in which the dolly disk 13. is mounted.- The central portion of the recess 12 is provided with a second recess 14. Secured in the bottom-11 is a postfl,

`locked in position by means of'a nut 16,

said post being provided with a collar 17 to assist in supporting the post 15 in an upright position. Said post 15 extends upwardly .through the recesses 12 and 14 and has a rack guide 18 pivotally supported on its lower end.

Rotatively mounted on the post 15 is Ya sleeve 19, the lower end of which is provided with a pinion gear 20. The sleeve 19 is rectangular in cross section and has a round opening extending through vits longitudinal center for receiving the post 15. The upper end of the post 15 is provided with an annular groove 21 for receiving a set screw 22 carried by the sleeve 19, said set screw being provided for the purpose of preventing the sleeve 19 from being lifted upwardly and at the same time permitting the sleeve to rotate freely about the post 15.

The dolly disk 13 is provided with an upwardly extending hub 23 having a square opening 1n its center for receiving the upper end of the sleeve 19, the dolly being pro- I vided with radially extending blades 24 for agitating the water, the blades connecting with the disk 13 and the hub 23 in themanner clearly illustrated. The hub 23 is provided with a. pair of oppositely arranged lugs -25 located near the disk 13. Each of the lugs 25 is provided with an opening 26 for receiving a spring actuated retaining pin 27. The inner ends of the pins 27 are designed to rest in a groove 28 formed in the outer surface yof the sleeve 19. The inner ends of the pins 27 are rounded so that if a considerableupward pressure is applied to` the dolly, the dolly may be lifted from thev sleeve 19. The pins 27 are forced outwardly 19 is rotated through the pinion 20 by means ofv a rack 32, which is supported in a suitable' groove 33 in the bottom of the tub, and is connected at its free end with a crank 3 4 driven from the shaft 35.l i

Thus it will be seen that byl providing the set screw 22 and the spring actuated pins 27, I have provided means whereby the dolly as the dolly is elevated. Each lof the pins will be prevented from being lifted from the l sleeve, and the sleeve prevented from being moved upwardly to cause the pinion 20 to disengage the rack32, as the dolly is being Operated,r and at the same time permit the dolly to be easily and quickly removed from the sleeve 19 for the purpose of cleaning the recesses 12 and 14, when desired. It is seldom desirable to remove the sleeve 19, and for that reason the setl screw 22 is used in place of a spring pin as used in the dolly.

I claim as my invention:

1. In auwashing machine, a tub having a bottom member, a post secured in the said bottom'member and projected upwardly into said tub, the upper end of said post being within said recess, the inner end of saidv said annular groove to prevent longitudinal movement of said sleeve relative to said post,

said sleeve being rectangular in cross section and having its side faces provided with grooves in alinement with each other, av

dolly disk Y*having a hub portion provided with a rectangular opening for receiving said sleeve, the hub of said dolly disk being provided with a recess in alinement with the groove of said sleeve `and in communication therewith, a pin slidably mounted in said recess having its inner end rounded and designed to enter' the ygroove of said sleeve, said pin being provided with a rib orlimiting its inward movement, a spring for yieldably moving said pin inwardly, an adjustmeshes ing nut for supporting the outer end of said spring, and means for imparting oscillatory movement to said sleeve.

3. ln a washing machine, a tub having a bottom member, an upright post in said bottom, a sleeve rotatively mounted on said post, means for locking said sleeve against longitudinal movement relative to said post, a dolly carried by said sleeve, yieldable means for retaining said dolly in position on said sleeve, means for locking the sleeve against rotary movement relative to said dolly, and means for imparting oscillatory movement to said sleeve.

4. In a washingmachine, a tub having a bottom, an upright post, a sleeve rotatively mounted on said post, a dolly detachably supported on said sleeve, yieldable means for retaining said dolly against removal from said sleeve, means for' operatively connecting said sleeve with said dolly, and

means for imparting oscillatory movement to said sleeve.

Des Moines, Iowa, February 14, 1927.

BERT A. STOCKING. 

